The name is absent

6.1.3. Modelling motivated behaviours

In this experiment we have an initial state as the one shown in Figure 29. We have an
animat with some hunger and a lot of thirst. He is perceiving a food source. Since the thirst
column wins the competition at the motivational level²⁶, he does not approach the food, but
begins to explore. Once he perceives a water source, he approaches it and drinks until his thirst
is satiated. After this, the hunger column wins the competition at a motivational level, so he
approaches the food and eats until he satiates his hunger. After this, he wanders because he has
no internal needs, nor are there any stimuli that trigger reactive or reflex behaviours. This
behaviours patterns can be appreciated in Figure 30.

Figure 29. Initial state of the experiment.           Figure 30. Animat after satiating his needs.

6.1.4. Primary and secondary classical conditionings

In this experiment we will test primary and secondary classical conditionings. In order
to obtain the conditioning of a red spot with a food source, we make several presentations of
the pair red spot - food source, when the animat is hungry. Figure 31 shows an initial stage of
the conditioning: we can see that the coupling strengths related to the internal behaviours
external behaviours selector (SCE4), intero/extero/drive congruence (CPED2), and attention to
preferences (AP3), have still small values. Figure 32 shows an advanced stage of the
conditioning, where the coupling strengths have higher values. The speed of the conditioning
can be modulated in the BVL with the parameter 8 of expression (10)²⁷.

²⁶See Section 3.7.

²⁷See Section 3.8.1.

75

<<   79   80   81   82   83   84   85   >>

More intriguing information